JP2009018057A - Inner edge for reciprocating electric razor - Google Patents

Inner edge for reciprocating electric razor Download PDF

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Publication number
JP2009018057A
JP2009018057A JP2007183624A JP2007183624A JP2009018057A JP 2009018057 A JP2009018057 A JP 2009018057A JP 2007183624 A JP2007183624 A JP 2007183624A JP 2007183624 A JP2007183624 A JP 2007183624A JP 2009018057 A JP2009018057 A JP 2009018057A
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Japan
Prior art keywords
blade
inner blade
diaphragm
edge
point
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JP2007183624A
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JP4595968B2 (en
Inventor
Shunsuke Komori
俊介 小森
Hiroaki Shimizu
宏明 清水
Takeshi Shiba
武志 柴
Shigezaemon Iwasaki
重左エ門 岩崎
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Panasonic Electric Works Co Ltd
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Panasonic Electric Works Co Ltd
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Priority to JP2007183624A priority Critical patent/JP4595968B2/en
Application filed by Panasonic Electric Works Co Ltd filed Critical Panasonic Electric Works Co Ltd
Priority to RU2010100636/02A priority patent/RU2428302C1/en
Priority to PCT/JP2008/062093 priority patent/WO2009008333A1/en
Priority to CN2008800239710A priority patent/CN101687327B/en
Priority to US12/667,781 priority patent/US20100325893A1/en
Priority to EP08777845A priority patent/EP2168729B1/en
Priority to AT08777845T priority patent/ATE542647T1/en
Publication of JP2009018057A publication Critical patent/JP2009018057A/en
Application granted granted Critical
Publication of JP4595968B2 publication Critical patent/JP4595968B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/044—Manufacture and assembly of cutter blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To improve the degree of freedom of vibrating plates supported by an inner-edge coupling supporting part, to enlarge the comfortable shaving sound as much as possible and to make shavings hard to gather downside the vibrating plates. <P>SOLUTION: The inner edge for the electric razor is provided with an inner-edge body 3 sliding along inside an outer edge 1 to cut hairs and having a plurality of reversely U-shaped edge pieces 30 and inner-edge couplings 4 supporting the body 3. The couplings 4 are provided with a plurality of vibrating plates 40 connected to any of the edge pieces 30 and for generating the shaving sound at cutting hairs and the supporting part 41 supporting each plate 40, wherein the part 41 supports a single point of each plate 40. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、往復式電気かみそりの内刃に関し、詳しくは内刃継手に複数の振動板を設けた構造に関するものである。   The present invention relates to an inner blade of a reciprocating electric shaver, and more particularly to a structure in which a plurality of diaphragms are provided on an inner blade joint.

従来では、例えば図９に示すように、内刃継手４に設けた支持部４１に振動板４０を取り付け、振動板４０の頂部を内刃体３のいずれかの刃片３０に接続し、髭剃り時に振動板４０が振動することで、心地よい振動音（剃り音）を発生させるようにした往復式電気かみそりの内刃が知られている（例えば、特許文献１参照）。   Conventionally, for example, as shown in FIG. 9, a vibration plate 40 is attached to a support portion 41 provided in the inner blade joint 4, and the top of the vibration plate 40 is connected to any blade piece 30 of the inner blade body 3. An inner blade of a reciprocating electric shaver that generates a pleasant vibration sound (shaving sound) by vibrating the diaphragm 40 during shaving is known (for example, see Patent Document 1).

ところが上記特許文献１に見られる従来例では、振動板４０の下端両側Ｐ３，Ｐ４が前後２本の支持部４１に対して二点支持されており、このため振動板４０の振動が２本の支持部４１により規制されて振動板４０を大きく振動させるのに限界があり、このため従来では心地よい剃り音を大きくしたいとの要望に十分に応えられないものであった。
特開平７−２２２８８０号公報 However, in the conventional example shown in the above-mentioned Patent Document 1, the lower end sides P 3 and P 4 of the diaphragm 40 are supported at two points on the two front and rear support portions 41, so that the vibration of the diaphragm 40 is 2 points. There is a limit to greatly vibrating the diaphragm 40 by being restricted by the support portion 41 of the book. For this reason, conventionally, it has not been possible to sufficiently satisfy the demand for a comfortable shave sound.
JP-A-7-222880

本発明は上記の従来の問題点に鑑みて発明したものであって、内刃継手の支持部により支持される振動板の自由度が高まり、心地よい剃り音をできる限り大きくできると共に、振動板の下側に髭くずが溜まりにくい往復式電気かみそりの内刃を提供することを課題とするものである。   The present invention was invented in view of the above-described conventional problems, and the degree of freedom of the diaphragm supported by the support portion of the inner blade joint is increased, and a comfortable shaving sound can be increased as much as possible. An object of the present invention is to provide an inner blade of a reciprocating electric razor in which scraps are unlikely to accumulate on the lower side.

前記課題を解決するために本発明にあっては、外刃１の内面に沿って摺動して毛を切断する逆Ｕ字状の複数の刃片３０を有する内刃体３と、内刃体３を支持する内刃継手４とを備えた往復式電気かみそりの内刃において、上記内刃継手４には上記刃片３０のいずれかに接続されて毛の切断時に剃り音を発生させる複数枚の振動板４０と、各振動板４０を支持する支持部４１とが設けられ、支持部４１を各振動板４０の夫々の一点を支持する一点支持構造としたことを特徴としている。   In order to solve the above-described problems, in the present invention, the inner blade body 3 having a plurality of inverted U-shaped blade pieces 30 that slide along the inner surface of the outer blade 1 to cut hair, and the inner blade In an inner blade of a reciprocating electric shaver provided with an inner blade joint 4 that supports the body 3, the inner blade joint 4 is connected to any of the blade pieces 30 to generate a shaving sound when cutting hair. One diaphragm 40 and a support part 41 that supports each diaphragm 40 are provided, and the support part 41 has a single-point support structure that supports each point of each diaphragm 40.

このような構成とすることで、髭剃り時に複数の刃片３０が髭が切断する際に刃片３０に連結された振動板４０が振動して心地よい剃り音が発生する。しかも各振動板４０は支持部４１により一点支持されているので、支持部４１に対する各振動板４０の自由度が高まり、従来の二点支持構造と比較して、振動板４０の振動量を増大させることができる結果、使用者にとって心地よい剃り音をできる限り大きなものとすることができる。しかも振動板４０を一点支持する支持部４１を細く形成できるので、振動板４０の下側に髭くずが溜まりにくくなる。   With such a configuration, when the plurality of blade pieces 30 are cut by the scissors during shaving, the diaphragm 40 connected to the blade pieces 30 vibrates and a comfortable shaving sound is generated. Moreover, since each diaphragm 40 is supported at one point by the support part 41, the degree of freedom of each diaphragm 40 with respect to the support part 41 is increased, and the vibration amount of the diaphragm 40 is increased as compared with the conventional two-point support structure. As a result, a shave sound that is comfortable for the user can be made as large as possible. In addition, since the support portion 41 that supports the diaphragm 40 at a single point can be formed thinly, it is difficult for the waste to accumulate on the lower side of the diaphragm 40.

また、上記支持部４１は、各振動板４０の下端中央Ｐ１を夫々一点支持する中央一点支持構造であるのが好ましく、この場合、振動板４０の支持を安定化させることができる。 Further, the support 41 is preferably a central one point support structure the bottom center P 1 supporting each one point of each of the vibration plate 40, in this case, it is possible to stabilize the support of the vibration plate 40.

また、上記支持部４１は、各振動板４０の下端の前後両側のいずれか片側Ｐ２を夫々一点支持する片側一点支持構造であるのが好ましく、この場合、支持部４１を片側に寄せることで振動板４０の下側に髭くずが一層溜まりにくくできると共に、片側一点支持される振動板４０は、その振動のモーメントが大きくなり、より大きな振動が得られるようになる。 Further, the support 41 is preferably a one-sided single point support structure either on one side P 2 of the front and rear sides for supporting each one point of the lower end of the vibrating plate 40, in this case, by lapping the supporting portion 41 on one side While it is possible to make it more difficult for the waste to accumulate on the lower side of the vibration plate 40, the vibration plate 40 supported at one point on one side has a larger vibration moment, so that a larger vibration can be obtained.

また、上記支持部４１の下側に空間７０を形成するのが好ましく、この場合、髭くずを空間７０に落下させることにより、振動板４０やその支持部４１周辺に髭くずが溜まりにくくなる。   In addition, it is preferable to form a space 70 below the support portion 41. In this case, dropping the sawdust into the space 70 makes it difficult for the waste to collect around the diaphragm 40 and the support portion 41.

本発明は、内刃継手の支持部により複数の振動板を夫々一点支持構造としたことにより、各振動板の自由度が高まり、振動板の振動量を増大させることができる結果、使用者にとって心地よい剃り音をできる限り大きくできると共に、振動板の下側に髭くずが溜まりにくい往復式電気かみそりの内刃が得られる。   The present invention has a structure in which a plurality of diaphragms are supported at one point by the support portion of the inner blade joint, thereby increasing the degree of freedom of each diaphragm and increasing the amount of vibration of the diaphragm. The inner blade of a reciprocating electric razor can be obtained that can make a comfortable shave sound as much as possible and that does not accumulate scraps under the diaphragm.

以下、本発明を添付図面に示す実施形態に基いて説明する。   Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

本例の往復式電気かみそりのへッド部には、例えば図８に示すように、各々が独立してフロート自在な４枚の刃ヘッド２１〜２４が着脱自在に取り付けられている。このうち、中央には２枚の補助刃ヘッド２３，２４が並んで配置され、その両外側に２枚のアーチ状の仕上げ剃り用主刃ヘッド２１，２２が夫々配置されている。   For example, as shown in FIG. 8, four blade heads 21 to 24 that can float independently are detachably attached to the head portion of the reciprocating electric razor of this example. Among these, two auxiliary blade heads 23 and 24 are arranged side by side in the center, and two arch-shaped main blade heads 21 and 22 for finishing shaving are arranged on both outer sides thereof.

図８において、２枚の仕上げ剃り主刃ヘッド２１，２２は、従来と同様、外刃２５Ａ、外刃枠２６Ａ、内刃２７Ａ、内刃継手２８Ａ、外刃カバー２９Ａ等で構成されている。   In FIG. 8, the two finishing shave main blade heads 21 and 22 are composed of an outer blade 25A, an outer blade frame 26A, an inner blade 27A, an inner blade joint 28A, an outer blade cover 29A, and the like, as in the prior art.

また、２枚の補助刃ヘッド２３，２４の一方が、アーチ状の仕上げ剃り刃ブロック６で構成され、他方がスリット刃１Ａと内刃３Ａと内刃継手４Ａ等を備えた粗剃り用刃ブロック１８で構成されている。   Further, one of the two auxiliary blade heads 23, 24 is constituted by an arch-shaped finishing shave blade block 6, and the other is provided with a slit blade 1A, an inner blade 3A, an inner blade joint 4A, etc. 18.

以下、補助刃ヘッド２３を構成する仕上げ剃り刃ブロック６について説明する。なお以下において、内刃の往復駆動する方向を長手方向Ａ又は左右方向とし、この方向と直交する方向を前後方向Ｂとする。   Hereinafter, the finishing shave blade block 6 constituting the auxiliary blade head 23 will be described. In the following, the direction in which the inner blade is driven to reciprocate is referred to as the longitudinal direction A or the left-right direction, and the direction orthogonal to this direction is referred to as the front-rear direction B.

仕上げ剃り刃ブロック６は、図２に示すように、多数の刃孔を有する金属薄板から成る外刃１（ネット刃）と、外刃１を固定する外刃枠２とからなる外刃ブロック６Ａと、外刃１の下面に配置される内刃体３と、内刃体３を駆動側に連結する内刃継手４と、内刃体３を外刃１の内面に向けて押圧する内刃押上バネ５とからなる内刃ブロック６Ｂとで構成される。   As shown in FIG. 2, the finishing shaving blade block 6 includes an outer blade block 6 </ b> A including an outer blade 1 (net blade) made of a thin metal plate having a large number of blade holes and an outer blade frame 2 that fixes the outer blade 1. An inner blade body 3 disposed on the lower surface of the outer blade 1, an inner blade joint 4 that connects the inner blade body 3 to the drive side, and an inner blade that presses the inner blade body 3 toward the inner surface of the outer blade 1. It is comprised with the inner blade block 6B which consists of the raising spring 5. As shown in FIG.

上記外刃枠２の前後両下面にヒートシールボス２７が突設され、外刃１をアーチ状に湾曲させて外刃１の前後両下面に夫々設けた係合孔２８をヒートシールボス２７に嵌め込んだ状態で、外刃１と外刃枠２とがヒートシール固定されるようになっている。   Heat seal bosses 27 project from the front and rear lower surfaces of the outer cutter frame 2, and the engagement holes 28 provided on the front and rear lower surfaces of the outer cutter 1 are formed in the heat seal boss 27 by curving the outer cutter 1 in an arch shape. In the fitted state, the outer blade 1 and the outer blade frame 2 are heat-sealed and fixed.

内刃体３は板金をプレス曲げして全体をアーチ状に形成したものであって、上に凸の断面略円弧状を成す上側部分にスリット孔２９を複数形成することで逆Ｕ字状の刃片３０が複数並設させたものであり、その前後両下端から夫々下方に延設される下側部分には、その中央側に切欠部３１を夫々凹設し、切欠部３１の左右両側に、下側に開口した略円形状の円凹部３２を夫々凹設し、さらに両外側に下方に開口した略矩形状の角凹部３３を夫々凹設している。   The inner blade body 3 is formed by press-bending a sheet metal and is formed into an arch shape as a whole. By forming a plurality of slit holes 29 in an upper portion having a substantially arcuate cross section, the inner blade body 3 is formed in an inverted U shape. A plurality of blade pieces 30 are juxtaposed, and a lower part extending downward from the front and rear lower ends thereof is provided with a notch 31 at the center, respectively, and left and right sides of the notch 31. In addition, a substantially circular circular recess 32 opened downward is respectively provided, and a substantially rectangular corner recess 33 opened downward is provided on both outer sides.

内刃継手４の下部中央にはかみそり本体の駆動子側に着脱自在に連結される連結凹部３４が設けられている。内刃継手４の前後方向Ｂを向く両面には夫々、角柱状の角凸部３５と円筒状のヒートシールボス３６とが並べて突設されている。そして、内刃体３の下方から内刃継手４を内部に挿入すると共に、内刃継手４のヒートシールボス３６を内刃体３の円凹部３２に嵌め込んで位置決めした状態で、ヒートシールボス３６をヒートシールすることで行われる。加えて、内刃体３に内刃継手４を装着した状態では内刃体３の角凹部３３に内刃継手４の角凸部３５が嵌合することで、内刃継手４に対する内刃３の左右の位置決めが行なわれる。図１中の６０はバネ受け部である。   A connecting recess 34 is provided at the center of the lower portion of the inner blade joint 4 so as to be detachably connected to the driver side of the razor body. A prismatic square convex portion 35 and a cylindrical heat seal boss 36 are juxtaposed on both surfaces of the inner blade joint 4 facing the front-rear direction B, respectively. Then, the inner blade joint 4 is inserted into the inner blade body 3 from below, and the heat seal boss 36 of the inner blade joint 4 is fitted and positioned in the circular recess 32 of the inner blade body 3, and the heat seal boss is inserted. This is done by heat-sealing 36. In addition, in a state where the inner blade joint 4 is mounted on the inner blade body 3, the inner blade 3 with respect to the inner blade joint 4 is fitted by fitting the angular convex portion 35 of the inner blade joint 4 into the angular recess 33 of the inner blade body 3. The left and right are positioned. Reference numeral 60 in FIG. 1 denotes a spring receiving portion.

また、上記仕上げ剃り刃ブロック６は、図１に示すガイド枠８を介して、かみそり本体に設けられる保持枠７に対してフロート自在に保持されるようになっている。   Further, the finishing shave blade block 6 is floatably held with respect to a holding frame 7 provided in the razor body through a guide frame 8 shown in FIG.

ガイド枠８は、長手方向Ａ両端に位置する一対の枠部１２と、一対の枠部１２を互いに連結する連結部１３とが一体に形成されており、一対の枠部１２の内面に夫々結合部９が設けられ、各枠部１２の外面に夫々保持枠７にフロート自在に保持されるガイド突起４５が設けられ、各枠部１２の下端から長手方向Ａに延びる底面部に夫々バネ受け部１０が設けられている。   The guide frame 8 is formed integrally with a pair of frame portions 12 positioned at both ends in the longitudinal direction A and a connecting portion 13 that connects the pair of frame portions 12 to each other, and is coupled to the inner surfaces of the pair of frame portions 12. Are provided on the outer surface of each frame portion 12, and are provided with guide protrusions 45 that are floatably held by the holding frame 7, and spring receiving portions are provided on the bottom surface portions extending in the longitudinal direction A from the lower ends of the respective frame portions 12. 10 is provided.

さらに各枠部１２の外側面には、夫々、カバー片４３が設けられている。各カバー片４３の内面には縦リブ４４が形成され、カバー片４３と対向する枠部１２の外面にはガイド突起４５が突設され、一方、保持枠７には上記縦リブ４４が上方(図２（ｂ）の矢印方向)から挿入される上方に開放された凹溝４６と、ガイド突起４５が係合する係合突起４８が設けられている。そして、各枠部１２の縦リブ４４が外刃枠２の凹溝４６に沿ってフロート自在とされると共にガイド突起４５と係合突起４８との係止によってガイド枠８が保持枠７から簡単に外れない状態で組み立てられる。   Further, a cover piece 43 is provided on each outer surface of each frame portion 12. Vertical ribs 44 are formed on the inner surface of each cover piece 43, and guide protrusions 45 project from the outer surface of the frame portion 12 facing the cover pieces 43. On the other hand, the vertical ribs 44 are located upward on the holding frame 7 ( A concave groove 46 opened upward (in the direction of the arrow in FIG. 2B) and an engagement protrusion 48 with which the guide protrusion 45 engages are provided. The vertical ribs 44 of the respective frame portions 12 can be floated along the concave grooves 46 of the outer blade frame 2, and the guide frame 8 is easily removed from the holding frame 7 by the locking of the guide protrusion 45 and the engagement protrusion 48. It is assembled in a state that does not come off.

上記ガイド枠８の連結部１３は、ガイド枠８の長手方向Ａと直交する前後方向Ｂ両側に夫々配置される１本以上の壁１３ａ，１３ｂで構成されている。各壁１３ａ，１３ｂの長手方向Ａの一端は一方の枠部１２の底面部に夫々連設され、各壁１３ａ，１３ｂの長手方向Ａの他端は他方の枠部１２の底面部に夫々連設されている。図１の例では、前側の１本の壁１３ａと後側の１本の壁１３ｂの計２本で構成されており、２本の壁１３ａ，１３ｂ間に、外刃１を固定した外刃枠２が配置されるようになっている。なお壁１３ａ，１３ｂの数は特に限定されず、適宜変更自在である。   The connecting portion 13 of the guide frame 8 is composed of one or more walls 13 a and 13 b disposed on both sides in the front-rear direction B perpendicular to the longitudinal direction A of the guide frame 8. One end of each wall 13a, 13b in the longitudinal direction A is connected to the bottom surface portion of one frame portion 12, and the other end of each wall 13a, 13b in the longitudinal direction A is connected to the bottom surface portion of the other frame portion 12, respectively. It is installed. In the example of FIG. 1, the outer blade is composed of a total of two walls, one front wall 13a and one rear wall 13b, and the outer blade 1 is fixed between the two walls 13a and 13b. A frame 2 is arranged. The number of walls 13a and 13b is not particularly limited and can be changed as appropriate.

また上記ガイド枠８の結合部９は、図１に示すように、ガイド枠８の長手方向Ａ両端から内方に突出する爪状に形成されており、外刃枠２の長手方向Ａ両端に設けたフック４７を爪状の結合部９に引っ掛けることで、外刃枠２とガイド枠８とを結合するようにしている。   Further, as shown in FIG. 1, the coupling portion 9 of the guide frame 8 is formed in a claw shape protruding inward from both ends in the longitudinal direction A of the guide frame 8, and is formed at both ends in the longitudinal direction A of the outer blade frame 2. By hooking the provided hook 47 to the claw-like coupling portion 9, the outer blade frame 2 and the guide frame 8 are coupled.

上記構成の仕上げ剃り刃ブロック６（外刃ブロック６Ａ、内刃ブロック６Ｂ）を組み立てるにあたっては、予め、外刃１と外刃枠２とをヒートシール固定して外刃ブロック６Ａを組み立てておく。従って、外刃１と保持枠７との組立時に外刃１に内刃押上バネ５からのバネ付勢力が加わることがないため、剛性の高い外刃１は勿論のこと、剛性の低い外刃１であっても変形させることなく外刃１と外刃枠２の結合が可能となり、外刃ブロック６Ａの組立を簡単に行なうことができる。その後、ガイド枠８のバネ受け部１０にて内刃押上バネ５の下端を支持し、内刃押上バネ５の上端を内刃体３と一体に固着された内刃継手４のバネ受け部６０に嵌め込んだ状態で、内刃体３の上に上記外刃ブロック６Ａの外刃１を被せるようにして、外刃枠２の長手方向Ａ両端に設けたフック４７をガイド枠８の長手方向Ａ両端に設けた爪状の結合部９に結合させることにより、仕上げ剃り刃ブロック６が完成する。   In assembling the finishing shave blade block 6 (outer blade block 6A, inner blade block 6B) having the above configuration, the outer blade block 6A is assembled in advance by fixing the outer blade 1 and the outer blade frame 2 with heat seal. Therefore, when the outer blade 1 and the holding frame 7 are assembled, no spring biasing force is applied to the outer blade 1 from the inner blade push-up spring 5, so that the outer blade 1 with low rigidity as well as the outer blade 1 with high rigidity is used. 1, the outer blade 1 and the outer blade frame 2 can be coupled without being deformed, and the outer blade block 6A can be easily assembled. Thereafter, the lower end of the inner blade push-up spring 5 is supported by the spring receiving portion 10 of the guide frame 8, and the upper end of the inner blade push-up spring 5 is fixed integrally with the inner blade body 3. The hooks 47 provided at both ends in the longitudinal direction A of the outer cutter frame 2 are covered with the outer cutter 1 of the outer cutter block 6A on the inner cutter body 3 in the longitudinal direction of the guide frame 8. A finishing shaving blade block 6 is completed by coupling to the claw-shaped coupling portions 9 provided at both ends of A.

ここで本発明においては、上記内刃継手４の上部に、図１に示すように、複数枚の振動板４０と、これらの振動板４０を支持する１本の支持部４１とが設けられている。複数の振動板４０は、内刃体３に設けた複数の刃片３０のうちの数本(例えば４〜６本)の刃片３０の下方に垂直に配置されている。各振動板４０は、逆Ｕ字状の刃片３０の内面に沿って屈曲した逆Ｕ字状に夫々形成されており、さらに図３〜図６に示すように、各振動板４０の頂部上端には夫々、左右一対の突片４２が設けられており、これら左右一対の突片４２で１枚の刃片３０の頂部下面を左右から挟み込むことによって、１枚の振動板４０の上端と該振動板４０と対向する１枚の刃片３０の頂部下面とが左右方向（つまり内刃体３の往復駆動方向）に連結固定されている。さらに、各振動板４０の下端部は夫々、内刃継手４の１本の支持部４１に一体成形されている。ここでは、各振動板４０の下端中央Ｐ１を夫々一点支持する中央一点支持構造を有しており、これにより、振動板４０の自由度が高められ、髭剃り時に内刃体３の刃片３０が髭が切断する際に刃片３０に連結された振動板４０が振動して心地よい振動音（剃り音）を発生させる仕組みとなっている。 Here, in the present invention, as shown in FIG. 1, a plurality of diaphragms 40 and a single support portion 41 that supports these diaphragms 40 are provided on the upper part of the inner blade joint 4. Yes. The plurality of diaphragms 40 are vertically arranged below several (for example, 4 to 6) blade pieces 30 among the plurality of blade pieces 30 provided on the inner blade body 3. Each diaphragm 40 is formed in an inverted U shape that is bent along the inner surface of the inverted U-shaped blade piece 30, and further, as shown in FIGS. Each has a pair of left and right protrusions 42. The pair of left and right protrusions 42 sandwich the top lower surface of one blade piece 30 from the left and right, so that the upper end of one diaphragm 40 and the upper The top lower surface of one blade piece 30 facing the diaphragm 40 is connected and fixed in the left-right direction (that is, the reciprocating drive direction of the inner blade body 3). Further, the lower end portion of each diaphragm 40 is integrally formed with one support portion 41 of the inner blade joint 4. Here, it has a central single point support structure the bottom center P 1 supporting each one point of each of the vibration plate 40, thereby, increased flexibility of the vibration plate 40, the cutting pieces of the inner edge body 3 when shaving When the scissors 30 are cut, the diaphragm 40 connected to the blade piece 30 vibrates to generate a pleasant vibration sound (shaving sound).

しかして、髭剃り時に内刃体３の刃片３０が髭が切断する際に刃片３０に連結された振動板４０が振動して心地よい剃り音を発生させるものであるが、本例の振動板４０は１本の支持部４１による一点支持構造となっているので、支持部４１に対する各振動板４０の自由度が高まり、従来の二点支持構造と比較して、振動板４０の振動量を増大させることができる結果、使用者にとって心地よい剃り音をできる限り大きなものとすることができる。また本例では、振動板４０の下端中央Ｐ１を一点支持しているので、支持部４１による振動板４０の支持がより安定化する利点がある。 The vibration plate 40 connected to the blade piece 30 vibrates when the blade piece 30 of the inner blade body 3 cuts during shaving, and generates a comfortable shave sound. Since the plate 40 has a one-point support structure with one support portion 41, the degree of freedom of each diaphragm 40 with respect to the support portion 41 is increased, and the amount of vibration of the diaphragm 40 compared to the conventional two-point support structure. As a result, the shave sound that is comfortable for the user can be made as large as possible. In the present embodiment, since the lower end center P 1 of the vibration plate 40 supports one point, there is an advantage that the support of the vibration plate 40 by the support portion 41 is further stabilized.

しかも、振動板４０の下端を一点支持する１本の支持部４１を細く形成できるので、つまり、１本の棒状体で形成できるので、髭くずが支持部４１上に溜まりにくくなる。しかも図３、図５に示すように、振動板４０の支持部４１の下側に空間７０を形成したことによって、髭くずを空間７０に逃がすことができるようになるので、結果、振動板４０の下側に髭くずが溜まるのを確実に防止できるという利点もある。   In addition, since the single support portion 41 that supports the lower end of the diaphragm 40 at a single point can be formed thin, that is, it can be formed by a single rod-like body, so that it is difficult for scraps to accumulate on the support portion 41. Moreover, as shown in FIGS. 3 and 5, since the space 70 is formed below the support portion 41 of the vibration plate 40, the waste can be released into the space 70, and as a result, the vibration plate 40. There is also an advantage that it is possible to reliably prevent the accumulation of trash on the lower side.

前記実施形態では、振動板４０の中央一点支持構造を説明したが、他の実施形態として、図７に示すように、振動板４０の支持部４１を振動板４０の前後両側のいずれか片側に寄せて配置し、振動板４０の下端片側Ｐ２を一点支持する片側一点構造としてもよい。他の構成は前記実施形態と同様である。本例では、支持部４１が片側に寄せて配置されることで振動板４０の下側の開口部が広がり、髭くずが溜まりにくくなる効果に加えて、片側一点支持される振動板４０は、片側一点Ｐ２から突片４２までの距離が長くなることで、その振動のモーメントが大きくなり、より大きな振動が得られる効果もある。 In the above-described embodiment, the central single-point support structure of the diaphragm 40 has been described. However, as another embodiment, the support portion 41 of the diaphragm 40 is placed on either one of the front and rear sides of the diaphragm 40 as shown in FIG. asked arranged, the lower end side P 2 of the vibration plate 40 may be one-sided single point structure supporting one point. Other configurations are the same as those of the above embodiment. In this example, in addition to the effect that the lower opening of the diaphragm 40 is widened by the support portion 41 being arranged close to one side and the scraps are less likely to accumulate, the diaphragm 40 supported at one point on one side is: by distance from one side a point P 2 until protrusion 42 is increased, the moment of the vibration is increased, more big vibration effect obtained.

本実施形態の往復式電気かみそりの刃ヘッドとして、図１０に示す２枚の主刃ヘッド２１，２２間に２枚の補助刃ヘッド２３，２４を配置した４枚刃を例示したが、これに限定されず、例えば２枚の主刃ヘッド２１，２２間に１枚の補助刃ヘッド２３又は２４を配置した３枚刃であってもよい。いずれの場合においても、振動板４０を支持する内刃継手４を備えた補助刃ヘッド２３（又は２４）を用いることによって、大きな心地よい剃り音を発生させることができる。   As a reciprocating electric razor blade head of the present embodiment, a four-blade in which two auxiliary blade heads 23 and 24 are arranged between two main blade heads 21 and 22 shown in FIG. 10 is illustrated. Without limitation, for example, a three-blade in which one auxiliary blade head 23 or 24 is disposed between the two main blade heads 21 and 22 may be used. In any case, a large and comfortable shaving sound can be generated by using the auxiliary blade head 23 (or 24) including the inner blade joint 4 that supports the diaphragm 40.

本発明の一実施形態に用いる内刃体と、振動板とこれを支持する支持部とを備えた内刃継手の分解斜視図である。It is a disassembled perspective view of the inner blade joint provided with the inner blade body used for one Embodiment of this invention, the diaphragm, and the support part which supports this. （ａ）は同上の内刃体と内刃継手とを備える内刃ブロックと、外刃ブロックと、これらをガイドするガイド枠との分解斜視図、（ｂ）は同上のガイド枠を保持する保持枠の斜視図である。(A) is an exploded perspective view of an inner blade block including the inner blade body and the inner blade joint, the outer blade block, and a guide frame for guiding them, and (b) is a holding for holding the guide frame. It is a perspective view of a frame. 同上の内刃継手の斜視図である。It is a perspective view of an inner blade coupling same as the above. 同上の内刃継手の平面図である。It is a top view of an inner blade coupling same as the above. 同上の内刃継手の側面図である。It is a side view of an inner blade coupling same as the above. 同上の内刃継手の縦断面図である。It is a longitudinal cross-sectional view of an inner blade coupling same as the above. 本発明の他の実施形態を示す支持部を片側に寄せた場合の内刃継手の縦断面図である。It is a longitudinal cross-sectional view of the inner blade joint at the time of bringing the support part which shows other embodiment of this invention to the one side. 同上の往復式電気かみそりの刃ヘッドが４枚刃である場合において、そのうちの２枚の主刃ヘッドにおける内刃継手に振動板を取り付けた場合を説明する分解斜視図である。When the blade head of the same reciprocating electric razor has four blades, it is an exploded perspective view for explaining a case where a diaphragm is attached to an inner blade joint of two of the main blade heads. 従来例の説明図である。It is explanatory drawing of a prior art example.

符号の説明Explanation of symbols

１ 外刃
２ 外刃枠
３ 内刃体
４ 内刃継手
３０ 刃片
４０ 振動板
４１ 支持部
７０ 空間
Ｐ１ 振動板の下端中央
Ｐ２ 振動板の下端片側 DESCRIPTION OF SYMBOLS 1 Outer blade 2 Outer blade frame 3 Inner blade body 4 Inner blade joint 30 Blade piece 40 Diaphragm 41 Supporting part 70 Space P 1 Lower end center of 1 P diaphragm 2 Lower end side of 2 diaphragm

Claims (4)

外刃の内面に沿って摺動して毛を切断する逆Ｕ字状の複数の刃片を有する内刃体と、内刃体を支持する内刃継手とを備えた往復式電気かみそりの内刃において、上記内刃継手には上記複数の刃片のいずれかに接続されて毛の切断時に剃り音を発生させる複数枚の振動板と、各振動板を支持する支持部とが設けられ、支持部を各振動板の夫々の一点を支持する一点支持構造としたことを特徴とする往復式電気かみそりの内刃。   Inside of a reciprocating electric shaver comprising an inner blade body having a plurality of inverted U-shaped blade pieces that slide along the inner surface of the outer blade to cut hair, and an inner blade joint that supports the inner blade body In the blade, the inner blade joint is provided with a plurality of diaphragms that are connected to any of the plurality of blade pieces and generate a shaving sound when cutting hair, and a support portion that supports each diaphragm. An inner blade of a reciprocating electric shaver characterized in that the support portion has a one-point support structure for supporting one point of each diaphragm. 上記支持部は、各振動板の下端中央を夫々一点支持する中央一点支持構造であることを特徴とする請求項１記載の往復式電気かみそりの内刃。   2. The inner blade of a reciprocating electric shaver according to claim 1, wherein the support portion has a central one-point support structure that supports the lower center of each diaphragm at one point. 上記支持部は、各振動板の下端の前後両側のいずれか片側を夫々一点支持する片側一点支持構造であることを特徴とする請求項１記載の往復式電気かみそりの内刃。   The inner blade of a reciprocating electric shaver according to claim 1, wherein the support portion has a one-sided one-point support structure that supports one side of each of the front and rear sides of the lower end of each diaphragm. 上記支持部の下側に空間を形成したことを特徴とする請求項１乃至３のいずれか一項に記載の往復式電気かみそりの内刃。
The inner blade of the reciprocating electric shaver according to any one of claims 1 to 3, wherein a space is formed below the support portion.
JP2007183624A 2007-07-12 2007-07-12 Reciprocating electric razor inner blade Active JP4595968B2 (en)

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JP2007183624A JP4595968B2 (en) 2007-07-12 2007-07-12 Reciprocating electric razor inner blade
PCT/JP2008/062093 WO2009008333A1 (en) 2007-07-12 2008-07-03 Inner blade for reciprocating electric shaver
CN2008800239710A CN101687327B (en) 2007-07-12 2008-07-03 Inner blade for reciprocating electric shaver
US12/667,781 US20100325893A1 (en) 2007-07-12 2008-07-03 Inner edge of reciprocating electric shaver
RU2010100636/02A RU2428302C1 (en) 2007-07-12 2008-07-03 Internal knife of electric razor of reciprocal movement
EP08777845A EP2168729B1 (en) 2007-07-12 2008-07-03 Inner edge of reciprocating electric shaver
AT08777845T ATE542647T1 (en) 2007-07-12 2008-07-03 INNER BLADE OF AN OSCILLATING ELECTRIC SHAVER

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EP (1) EP2168729B1 (en)
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Cited By (1)

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JP2013090668A (en) * 2011-10-24 2013-05-16 Panasonic Corp Electric razor

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EP2168729A4 (en) 2011-04-27
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WO2009008333A1 (en) 2009-01-15
EP2168729A1 (en) 2010-03-31
US20100325893A1 (en) 2010-12-30
JP4595968B2 (en) 2010-12-08
CN101687327A (en) 2010-03-31
CN101687327B (en) 2012-05-02
EP2168729B1 (en) 2012-01-25
ATE542647T1 (en) 2012-02-15

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